639756392607

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{6857}}^1\times {\mathrm{146009}}^1$

素因数の和:152943

約数の個数: 24

約数和(自身を含む): 937251038880

約数和(自身を除く): 297494646273

約数列:

[1, 3, 9, 71, 213, 639, 6857, 20571, 61713, 146009, 438027, 486847, 1314081, 1460541, 4381623, 10366639, 31099917, 93299751, 1001183713, 3003551139, 9010653417, 71084043623, 213252130869, 639756392607]

約数ペア:

[(1, 639756392607), (3, 213252130869), (9, 71084043623), (71, 9010653417), (213, 3003551139), (639, 1001183713), (6857, 93299751), (20571, 31099917), (61713, 10366639), (146009, 4381623), (438027, 1460541), (486847, 1314081)]